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annotate dds.h @ 237:a41c872bce48

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Enforce the number of counter channels when writing data to disk
author Daniele Nicolodi <daniele.nicolodi@obspm.fr>
date Thu, 29 Jan 2015 18:25:48 +0100
parents fcc988c6f841
children 5296f3bcd160
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1 #ifndef __FXANALYSE_DDS_H__
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2 #define __FXANALYSE_DDS_H__
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3
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4 #define usleep(t) Delay((t) / 1000000.0)
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5 #define strdup(s) StrDup(s)
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fcc988c6f841 Fix ad9956 sweep rate setting. Disable clock divider on init. Simplify
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fcc988c6f841 Fix ad9956 sweep rate setting. Disable clock divider on init. Simplify
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8 typedef long long int64;
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9 typedef unsigned long long uint64;
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10
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11 static inline uint64 ftw(double clock, double freq)
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12 {
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13 uint64 ftw = freq * ((double)(1ULL << 48) / clock);
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14 return ftw;
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15 }
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16
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17 static inline double freq(double clock, uint64 ftw)
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18 {
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19 double freq = (double)ftw * (clock / (double)(1ULL << 48));
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20 return freq;
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21 }
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23 static inline int strtouint64(const char *str, uint64 *v)
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24 {
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25 char *end;
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26 *v = strtoull(str, &end, 0);
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27 if (*end != '\0')
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28 return -1;
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29 return 0;
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30 }
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32 int msend(int fd, char *buffer, int n);
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33 int mrecv(int fd, char *buffer, int len);
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34 int command(int fd, char *frmt, ...);
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35
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36 #endif
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